Container structure



1933- I 'H. A. EGGERSS ,923,426

CONTAINER STRUCTURE Filed July 7. 1931 1 1 INVENTOR.

1 I Hans A. Elayzrsa BY .1 3 v Patented Aug. 22, 1933 comma STRUCTURE Hans A. Eggerss, Van Wert, Ohio Application July '1, 1931. Serial No. 549,229

2 Claims.

My invention relates to container structure.

It has to do, more particularly, with the provision of a container that may be formed of such material as fibre-board, pulp-board, paper or straw- 5 board, although it is not necessarily limited thereto.

In the prior art, considerable progress has been made in the development of containers of thistype. However, most prior art containers of this type have possessed weaknesses tending to more or less limit their use to lighter weight materials and smaller quantities. With heavy weight ma terials and larger quantities, many of these containers have shown a tendency to bulge along the side thereof and to crush at the chimes. Various efforts have been made to strengthen the chimes of containers of this type by reenforcing them with metal hook-like members. However, this has proved far from satisfactory and furthermore, has resulted in an undesirable increase in the cost of the container.

One object of this invention is to provide a container of the type indicated which will be formed practically entirely of fibre-board or sim- 5 ilar material but which will, nevertheless, be sufflciently strong to resist any manner of shock to which the container is likely to be subjected.

Another object of this invention is to provide a container of this type which will be proof against bulging or crushing of the chimes and will be free from danger of leakage.

Other objects of this invention will appear as this description progresses.

In its preferred embodiment, my invention comprises a container which is made up of a tubular body portion with its bottom ends inturned to form an integral flange, This flange is provided with a series of radial slots which commence at the inner edge thereof and whichterminate a substantial distance short of the line of juncture between the flange and the tubular body portion. Within the tubular body portion and superimposed upon the inturned flange is a disc of comparatively stiff card-board which rests upon the inturned flange and closely fits the interior of the tubular body portion, with the result that the disk is firmly braced against the A side walls of this tubular body portion and is supported upon the unslotted area of the integral flange. An exterior disk of thinner material is placed on the bottom of the container and the two disks are secured to the integral flange. An

inner cylindrical shell is also provided and this cylindrical shell closely fits within the tubular body portion, resting upon the inner disk and projecting above the upper end of the tubular body portion. This portion of the cylindrical shell which projects above the upper end of the tubular body portion receives a closure in such a manner that the upper end of the cylindrical shell contacts firmly with the horizontal portion of the closure.

The preferred embodiment of my invention is shown in the accompanying drawing wherein similar characters of reference designate corresponding parts and wherein Figure 1 is a perspective view, partially broken away, of my container completely assembled.

Figure 2 is a'detail, invertical section of one side of the structure shown in Figure 1.

Figure 3 is a perspective view of the main elements of my container prior to assembly thereof.

Figure 4 is a perspective view of my container with the closure shown removed therefrom.

Referring more particularly to the drawing, it will be seen that my container comprises a tubular body portion 1. This tubular body portion is preferably constructed of a plurality of overlapping plies of fibre-board and is entirely free from joints which extend entirely therethrough. At its lower. end, this tubular body portion is pro-. vided with an inturned integral flange having an unslotted portion 2 of substantial area and a portion which is provided with a series of radial slots 3 which, consequently form a series of tabs 4;

-It will be noted that the slots 3 extend radially outward from the inner edge of the integral flange and, as indicated, terminate a substantial distance short of the line of juncture between the flange and the tubular body portion to produce the unslotted portion 2.

Disposed within the interior of the tubular body portion is a disk 5 of stiff card-board. This disk 5 closely fits the interior of the tubular body portion so that its edges are laterally braced against the inner surface of such body portion and it is further supported from beneath by the integral flange of such tubular body portion. As a matter of fact, it is supported from beneath by the unslotted area 2 of this integral flange, as well as by the slotted portion.

Upon the under surface of the integral flange, there is provided a disk 6 of comparatively thin material, which may be pasted or glued to the integral flange and to the disk- 5. Additional securing means is'preferably used and, as shown, this takes the form of a series of sheet metal staples 7. These staples are preferably provided so that there is one for each tab of the integral 9 flange and so that each staple extends transversely of its tab.

Within this structure, as indicated in Figure 3, there is provided an inner cylindrical shell 8 which closely flts the interior of the tubular body portion and is capable of such freedom of movement therein that its lower edge will flrmly rest upon the card-board disk 5 and transmit to it any shocks or pressures which may be applied to this inner shell. This inner shell is substantially greater in height than the tubular body portion 1, and, projects a substantial distance above this tubular body portion, as shown clearly in Figure 4.

The top of the container may be generally designated 9 and is practically identical in struc-. ture with the tubular body portion 1 and the base structure applied thereto. For this reason, it need not be described in complete detail. It will suflice to say that it has an inwardly bent integral flange with an unslotted portion 10 and a plurality of'tabs 11 separated by slots 12, which extend outwardly from the inner edge of the integral flange. There is also provided a disk 13 of comparatively rigid cardboard which bears against the under side of the integral flange together with a disk 14 of thinner material which bears against the upper side of the integral flange member. Staples 15 are likewise used of-a type and in the manner similar to staple '1.

It will be noted that the depth of the top is such that it rests upon the upper edge of the cylindrical shell 8, and as illustrated in Figure 2, the vertical wall structure of this'closure does not quite contact with the upper edge of the tubular body portion 1. Thus, any shocks transmitted to the upper chime of the container will in turn be transmitted throughthe unslotted: portion of the integral flange and through the cardboard disk 19 to the upper edge of the cylindrical inner shell 8. The top maybe held in position and the container sealed by the application of an adhesive paper tape 16 over the joint between the top and the bottom, as illustrated in Figure 1.

It will be apparent from this description that -I have provideda novel form of container which is made practically entirely of fibre-board, pulp board or the like but which has unusual elements of rigidity and strength. In this connection, it will be obvious that I have provided a structure wherein the side walls of the container are braced against bulging by the additional thickness of the inner shell which is braced by the side walls of the tubular body portion and by the side walls of the closures. Furthermore, the mounting of the heavy cardboard disks upon the unslotted portions of the integral flanges both at the bottom and top of the container together with the direct contact of the inner cylindrical shell with both cardboard disks is an unusually eiiective resistance to shocks or pressures upon the chimes of a container.-

It will be apparent that there are numerous other advantages both from the standpoint of rigidity and strength as well as cheapness. As a matter of fact, actual tests have shown that with Y a container of the structure described, it is possible to pack 500 pounds of material therein and drop the container 5 feet upon its chime without producing bulging or other distortion of breakage.

Having thus described my invention, what I claim is:

1. A container structure made of flber board or similar material comprising a cylindrical bottom portion having an inwardly extending .integral annular flange on one end thereof comprising an unbroken shelf and a series of tabs of maximum width disposed in the, same plane, a disk of flber board or similar material disposed within said bottom .portion and secured to said flange, an upstanding cylindrical body portion disposed within said bottom portion and having vertical support from that portion of the disk which rests upon the unbroken shelf of said inwardly extending flange, and a closure of like structure as said bottom portion which fits over the upper end of said body portion and has its base in direct contact therewith.-

2. A container structure made of flber board or similar material comprising a cylindrical bottom portion having an inwardly extending integral annular flange on one end thereof comprising an unbroken shelf and a series of tabs of maximum width disposed in the same plane, a disk of-flber board or similar material disposed within said bottom portion, a 'disk on the outside of said annular flange, securing staples for securing both of said disks and said annular flange together, an upstanding cylindrical body portion disposed within said bottom portion and having vertical support from that portion of the inner disk which rests upon the'unbroken shelf of said inwardly extending flange, and a closure of like structure 

